package com.gzr.demo01.unsafe.synchronized1;

// 不安全的取钱
// 两个人去银行取钱
public class UnsafeBank {
    public static void main(String[] args) {
        // 账户
        Account account = new Account(100,"基金");
        Drawing my = new Drawing(account,50,"我");
        Drawing you = new Drawing(account,100,"你" );
        my.start();
        you.start();
    }
}

// 账户
class Account{
    int money; // 余额
    String name; //卡名
    public Account(int money,String name){
        this.money = money;
        this.name = name;
    }
}

// 银行：模拟取款
class Drawing extends Thread{
    Account account; // 账户
    // 取了多少钱
    int drawingMoney;
    // 现在手里有多少钱
    int nowMoney;
    public Drawing(Account account,int drawingMoney,String name){
        super(name);
        this.account = account;
        this.drawingMoney = drawingMoney;
    }
    // 取钱

    @Override
    public void run() {
        synchronized (account){
            // 判断有没有钱
            if (account.money-drawingMoney<0){
                System.out.println(Thread.currentThread().getName()+"钱不够，取不了");
                return;
            }
            try {
                Thread.sleep(1000);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
            // 卡内余额
            account.money = account.money - drawingMoney;
            // 手里的钱
            nowMoney = nowMoney + drawingMoney;
            System.out.println(account.name+"余额为："+account.money);
            System.out.println(this.getName()+"手里的钱："+nowMoney);
        }

    }
}


